Single-line macular optic coherence tomography to confirm optic neuropathies in awake infants and young children.

Autor: Duff SM; Department of Ophthalmology, Duke University Medical Center, Durham, North Carolina., Alvarez-Falcon S; Department of Ophthalmology, Duke University Medical Center, Durham, North Carolina., Freedman SF; Department of Ophthalmology, Duke University Medical Center, Durham, North Carolina., El-Dairi M; Department of Ophthalmology, Duke University Medical Center, Durham, North Carolina. Electronic address: mays.el-dairi@duke.edu.
Jazyk: angličtina
Zdroj: Journal of AAPOS : the official publication of the American Association for Pediatric Ophthalmology and Strabismus [J AAPOS] 2024 Aug; Vol. 28 (4), pp. 103968. Date of Electronic Publication: 2024 Jul 08.
DOI: 10.1016/j.jaapos.2024.103968
Abstrakt: Background: Handheld optical coherence tomography (HH-OCT) can image awake, young children but lacks integrated segmentation/analysis software. OCT imaging of eyes with optic neuropathies demonstrates ganglion cell layer (GCL) and ganglion cell complex (GCC) thinning, with a normal or thickened inner nuclear layer (INL). We compared pediatric normative data with GCL/INL and GCC/INL ratios from HH-OCT macular scans of awake young children with clinically diagnosed optic neuropathies.
Methods: Macular HH-OCT from awake children with optic neuropathies was prospectively obtained using Bioptigen (Leica Microsystems, Wetzlar, Germany). The GCL, GCC, and INL were manually measured by two readers using ImageJ from single-line macular scans at the thickest points nasal and temporal to the fovea, respectively, and the GCL/INL and GCC/INL ratios were calculated and compared with normative data.
Results: HH-OCT images from 17 right eyes of 17 children (mean age, 4.3 ± 2.9 years) with optic neuropathies were analyzed. Mean nasal (17 eyes) and temporal (16 eyes) GCL/INL ratios with optic neuropathies were 0.44 ± 0.38 (95% CI, 0.26-0.62) and 0.26 ± 0.22 (95% CI, 0.15-0.36), respectively. Corresponding normative GCL/INL ratios are 1.26 ± 0.20 (95% CI, 1.19-1.34) and 1.23 ± 0.27 (95% CI, 1.13-1.33), respectively (P < 0.0001). Severe thinning precluded GCL measurements in 2 eyes nasally and 5 eyes temporally, resulting in GCL measurements of zero. Mean nasal (17 eyes) and temporal (16 eyes) GCC/INL ratios were 1.93 ± 0.70 (95% CI,1.60-2.27) and 1.67 ± 0.44 (95% CI,1.46-1.87). Corresponding normative ratios are 2.85 ± 0.38 (95% CI, 2.71-2.99) and 2.87 ± 0.42 (95% CI, 2.70-3.03), respectively (P < 0.0001).
Conclusions: GCL/INL and GCC/INL ratios calculated from single-line macular HH-OCT scans in awake young children with optic neuropathies differ significantly from normative values and may thus have utility in helping to establish a diagnosis of optic neuropathy.
(Copyright © 2024 American Association for Pediatric Ophthalmology and Strabismus. Published by Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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